Prank rhind



I P. RHIND.

' (N0 Model.)

ARGAND LAMP.

No. 483,167. Patented Sept. 27, 1892.

` 'WITNE mvENmlR.

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ATTO RN EY.

UNITED STATES PATENT OFFICE.

FRANK RHINI), OF MERIDEN, CONNECTICUT, ASSIGNOR OF ONE-HALF TO THE EDWARD MILLER d: COMPANY, OF SAME PLACE.

A R G A N D LA M P.

SPECIFICATION forming part of Letters Patent No. 483,167, dated September 27, 1892.

Application filed [lune 15, 1891- Serial No. 395,388. (No model.)

To all whom if may concern:

Be it known that I, FRANK RrnND, a citizen of the United States, residing at Meriden, New Haven county, Connecticut, have invented a new and useful Improvement in Argand Lamps, of which the followingis a specification.

My invention relates to the inner air-distributers of Argand lamps, and is intended to improve the flame in size, color, and steadiness.

In the drawings, Figures l, 2, and 3 represent in central vertical section various modiflcations of my device, together with so much of the lamp as is necessary to show its position and relation.

The same letters and figures refer to like parts in the several views.

A designates the central air-supply tube of an Argand lamp; a, a bead or stop in the tube A; B,an outer wick-tube; C, an inner air-distributer consisting of cylindrie portions 1 and 2, wings 3, flanges l and 5, disks G and 7, and, in Fig. 2, diaphragm S.

In the example of myinvention illustrated in Fig. l of the drawings the central air-supply tube A, (here shown as having the additional function of inner wick-tuba) bead or stop d, and outer wick-tube B may be of any usefulorconvenientsizeandproportion. The air-distributor C consists of cylindric portions l and 2, (here shown asintegral,) open at both ends, the lower portion l preferably imperforate, the upper portion 2 pert'orate. The distributer is of less diameter than the tube A and concentrically supported within the tube by means of vertical wings or metal plates 3, secured to the cylinder 1 at or near its lower end and with their outer edges preferably in frictional contact with the tube A. Secured tothe cylinder 1 is the annular foraminous flange 4f, the outer diameter of which is preferably equal to or slightly less than the inner diameter of the tube A. It is so placed on the cylinder l as to come somewhat below the top of the tube A when the distributer C is in its operative position. lt serves to secure an even and regular distribution of the air which passes upward outside of the cylinder l and assists in maintaining the distributer in posi Above the flange 4 on the cylinder 1 2 tion.

and preferably at or near the upper end of the imperforate portion l is the flange 5. As here shown, it is an imperforate annulus of a diameter nearly corresponding to that of the outer wick-tube B. It is obvious that this size might not be the best adapted to all burners, but would necessarily vary under varying conditions. Surmounting the perforate portion 2 of the cylinder is a deflector orbut- 6o ton consisting of the foraminous disks 6 and 7, with their edges secured together.

The operation of the device will be as follows: A portion ol' the air which is drawn up through the air-supply t ube A will pass outside of the cylinder 1 between the wings 3, through the foraminous flange 4, and, being deflected by the fla-nge 5, will feed the inner mantle of the llame at its root. Another portion of the air will pass up through the cylinder l and 7o outward to the middle or body of the flame through the pcrforations in the cylindric portions 1 2. Still another portion of the rising column of air passes upward through the perforat-ions in the disks G and 7, and being eX- panded by heat is partly fed to the tip of the flame and partly passes upward in au uncombined state. The free air, which passes through the perforations in the disk 7, serves to prevent the tip of the flame from licking 8o in over the button, as well as to prevent eddies of air above the button, by which the smoothness of the tip of the flame would be destroyed.

The form of my device shown in Fig. 2 of 85 the drawings differs from that above described in several details. The perforate cylinder 2 and the delectors 6 7, supported thereby, are removable from the cylinder 1. The flange 5 is here shown as perforate, so that a 9o portion of the air which passes upward outside of the cylinder 1 is fed to the flame above the flange 5. This also serves to keep the flange 5 cool and reduce the convection of heat to the cylinder l and thence to the lamp. Again the center of the disk 6 is removed, leaving only an annular portion extending from the cylinder 2 to the edge of the disk 7.

It may sometimes be preferable, as in this case, to provide a diaphragm 8 between the roo disks 6 and 7, as shown, to prevent a too-free egress of air through the perforate disk 7.

` the distributer is non-essential and that other mechanical changes may be made in my device without departingfrom my invention.

I am aware of the existence of a prior patent covering a distributer consisting of a cylmdric portion, a deflecting-head, and a liange below the head. The defiector-head in this case was perforated on its lower side only, no means being provided for the prevention of eddies above the head or button. The distributer referred to was not provided with a foraminous cylindric portion between the head and the flange. This is of the first importance in my device.

I am also aware of a former'construction in which an air-distributer was provided with an enlarged cylindric head with perforated sides. In this case there was no [lange by which air could be deflected to the root of the flame. Neither was the cylindric portion of the distributer below the head or deflectingbutton perforate, which is of great advantage in supplying the body of the flame with a liberal quantity of air.

In a pending application, Serial No. 373,061, I have shown and claimed a deflect'ingbutton consisting of two foraminous disks united at their outer edges. Hence I do not here claim such a button, except in combination with other elements above described.

lVhat I claim as my invention, and desire to secure by Letters Patent of the United States, is as follows:

l. In an inner air-distributer of an Argand lamp, the combination of a substantially-cylindrical foraminous portion, an annular flange on said cylindrical portion in a plane above that of the central air-tube of the lamp, and a perforate deflecting-button of larger diameter than and surmounting said cylindrical portion, the perforations in said deecting-button being so arranged as to permit the upward passage through said button of a current of air, substantially as described.

2. In an innerair-distributer of an Argand lamp, the combination of a substantially-cylindrical portion, the lower part of which is imperforate and the upper part perforate, an annular flange on said cylinder in a plane above that of the central air-tube of the lamp, and a perforate detlecting-button of larger diameter than and surmounting said cylindrical portion, the perforations in said defiecting-bntton being so arranged as to permit the upward passage through said button of a current of air, substantially as described.

3. In an inner air-distributer of an Argand lamp, the combination of a substantially-cylindrical portion, the lower part of which is imperforate and the upper part perforate, an annular fiange on said cylinder in a plane above that of the top of the central air-tube of the lamp, and a deflecting-button consisting of two foraminous disks, substantially as described.

4. In an inner air-distributer of an Argand lamp, the combination of a substantially-cylindrical portion, the lower part of which is imperforate and the upper part perforate, a perforate annular ange on said cylinder in a plane above that of the top of the central air-tube of the lamp, and. a deflecting-button consisting of two foraminous disks, substantially as described.

5. In an inner air-distributer of an Argand lamp, the combination of a substantially-cylindrical portion, the lower part of which is imperforate and the upper part perforate, an annular flange on said cylinder in a plane above that 0f the top of the central air-tubeY of the lamp, an annular perforateflange in a plane below that of the top of the central airtube of the lamp, and a deflecting-button consisting of two foraminons disks, substantially as described.

6. In the inner air-distributer of an Argand lamp, the combination of a substantially-cylindrical perforate portion, an annular flange on said cylinder in a plane above that of the top of the central air-tube of the lamp, a deflecting-button consisting of two foraminous disks, and a foraminous diaphragm between said disks, substantially as described.

FRANK RHIND.

Witnesses:

GEO. L. COOPER, F. W. KILBOURNE.

IOO 

